*{
  margin: 0;
  padding: 0;
}
.container{
  display: flex;
}
.container>ul, 
.container>div
{
  flex-shrink: 0;
}
.nav{
  width: 180px;
  padding-top: 30px;
  padding-left: 60px;
  border-right: 1px solid #000000;
  box-sizing: border-box;
}